Home / 358,887.20-537,666.60-209,199.20

Finding the Fourth Proportional to 358,887.20, 537,666.60 and 209,199.20

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Solution

The fourth proportional to 358,887.20, 537,666.60 and 209,199.20 is: 313,411.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,887.20 : 537,666.60 = 209,199.20 : x
  2. Step 2: Convert to fraction form
    358,887.20/537,666.60 = 209,199.20/x
  3. Step 3: Cross multiply
    358,887.20x = 537,666.60 × 209,199.20
  4. Step 4: Simplify right side
    358,887.20x = 112,479,422,586.72
  5. Step 5: Solve for x
    x = 112,479,422,586.72/358,887.20
  6. Step 6: Final answer
    x = 313,411.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.